package org.cbioportal.legacy.web;

import io.swagger.v3.oas.annotations.Hidden;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.Parameter;
import io.swagger.v3.oas.annotations.media.ArraySchema;
import io.swagger.v3.oas.annotations.media.Content;
import io.swagger.v3.oas.annotations.media.Schema;
import io.swagger.v3.oas.annotations.responses.ApiResponse;
import io.swagger.v3.oas.annotations.tags.Tag;
import java.util.List;
import org.cbioportal.legacy.service.CacheStatisticsService;
import org.cbioportal.legacy.service.exception.CacheNotFoundException;
import org.cbioportal.legacy.utils.config.annotation.ConditionalOnProperty;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

@RestController
@Validated
@Tag(name = "CacheStats", description = " ")
@Hidden
@ConditionalOnProperty(
    name = "persistence.cache_type",
    havingValue = {"ehcache-heap", "ehcache-disk", "ehcache-hybrid", "redis"})
public class CacheStatsController {

  @Autowired public CacheStatisticsService cacheStatisticsService;

  @RequestMapping(
      value = "/api/{cache}/keysInCache",
      method = RequestMethod.GET,
      produces = MediaType.APPLICATION_JSON_VALUE)
  @Operation(description = "Get list of keys in cache")
  @ApiResponse(
      responseCode = "200",
      description = "OK",
      content = @Content(array = @ArraySchema(schema = @Schema(implementation = String.class))))
  public ResponseEntity<List<String>> getKeysInCache(
      @Parameter(required = true, description = "Cache name") @PathVariable String cache)
      throws CacheNotFoundException {
    List<String> strings = cacheStatisticsService.getKeysInCache(cache);
    return new ResponseEntity<>(strings, HttpStatus.OK);
  }

  @RequestMapping(
      value = "/api/{cache}/keyCountsPerClass",
      method = RequestMethod.GET,
      produces = MediaType.APPLICATION_JSON_VALUE)
  @Operation(description = "Get counts of keys per repository class")
  @ApiResponse(
      responseCode = "200",
      description = "OK",
      content = @Content(array = @ArraySchema(schema = @Schema(implementation = String.class))))
  public ResponseEntity<List<String>> getKeyCountsPerClass(
      @Parameter(required = true, description = "Cache name") @PathVariable String cache)
      throws CacheNotFoundException {
    List<String> strings = cacheStatisticsService.getKeyCountsPerClass(cache);
    return new ResponseEntity<>(strings, HttpStatus.OK);
  }

  @RequestMapping(
      value = "/api/cacheStatistics",
      method = RequestMethod.GET,
      produces = MediaType.APPLICATION_JSON_VALUE)
  @Operation(description = "Get general cache statistics")
  @ApiResponse(
      responseCode = "200",
      description = "OK",
      content = @Content(schema = @Schema(implementation = String.class)))
  public ResponseEntity<String> getCacheStatistics() throws CacheNotFoundException {
    return new ResponseEntity<>(cacheStatisticsService.getCacheStatistics(), HttpStatus.OK);
  }
}
